12037551601 has 2 divisors, whose sum is σ = 12037551602. Its totient is φ = 12037551600.

The previous prime is 12037551569. The next prime is 12037551667. The reversal of 12037551601 is 10615573021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6050506225 + 5987045376 = 77785^2 + 77376^2 .

It is an emirp because it is prime and its reverse (10615573021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12037551601 - 2⁵ = 12037551569 is a prime.

It is not a weakly prime, because it can be changed into another prime (12037551401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018775800 + 6018775801.

It is an arithmetic number, because the mean of its divisors is an integer number (6018775801).

Almost surely, 2^12037551601 is an apocalyptic number.

It is an amenable number.

12037551601 is a deficient number, since it is larger than the sum of its proper divisors (1).

12037551601 is an equidigital number, since it uses as much as digits as its factorization.

12037551601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The spelling of 12037551601 in words is "twelve billion, thirty-seven million, five hundred fifty-one thousand, six hundred one".